81106520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{184333}}^1$

素因数の和:184355

約数の個数: 32

約数和(自身を含む): 199080720

約数和(自身を除く): 117974200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 184333, 368666, 737332, 921665, 1474664, 1843330, 2027663, 3686660, 4055326, 7373320, 8110652, 10138315, 16221304, 20276630, 40553260, 81106520]

約数ペア:

[(1, 81106520), (2, 40553260), (4, 20276630), (5, 16221304), (8, 10138315), (10, 8110652), (11, 7373320), (20, 4055326), (22, 3686660), (40, 2027663), (44, 1843330), (55, 1474664), (88, 921665), (110, 737332), (220, 368666), (440, 184333)]